Mineral On Sedimentary Rock

Gneiss

Gneiss (High-grade regional metamorphic rock)

Jasper (specifically Red Jasper or Iron-stained Chert)

Silicon dioxide (SiO2) with iron oxide inclusions

Banded Chert

Silicon Dioxide (SiO2)

Petrified Wood

Silicified Wood (primarily Chalcedony or Quartz, SiO2)

Sandstone with Liesegang Rings

Arenite with Iron Oxide Liesegang Banding

Limestone

Calcium Carbonate (CaCO3)

Limestone (specifically Grainstone or Micrite)

Calcium Carbonate (CaCO3)

River Cobble (Salt and Pepper Gneiss)

Gneiss (High-grade regional metamorphic rock)

Petrified Wood

Silicified Wood (primarily SiO2)

Banded Gneiss

Gneiss (Metamorphic high-grade rock)

Red Jasper

Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)

Calcite

Calcite (Calcium Carbonate, CaCO3)

Petrified Wood

Silicified Wood (SiO2)

Pyrite

Iron Pyrite (FeS2)

Limestone

Calcareous sedimentary rock (primarily CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Petrified Wood

Silicified Wood (primarily SiO2)

Magnetite Sand (Black Sand)

Magnetite (Fe3O4)

Muscovite Mica

Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2

Chert (Quartz Variety)

Chert (mostly SiO2 / Silicon Dioxide)

Chert (Hagstone/Adder Stone)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartz

Silicon Dioxide (SiO₂)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Metasedimentary or Igneous matrix

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2)

Dalmatian Stone (often called Dalmatian Jasper)

Peralkaline Feldsphathic Igneous Rock

Banded Calcite (often sold as 'Travertine' or 'Mexican Onyx')

Calcium Carbonate (CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Banded Gneiss (with possible weathered sulfide or iron staining)

Gneiss, potentially with iron oxide/hydroxide staining (e.g., limonite) or weathered sulfides

Banded Gneiss

Gneiss (Metamorphic high-grade rock)

Fossil Crab

Decapoda (likely Avitelmessus or Raninidae family)

Banded Chert (River Pebble)

Microcrystalline Quartz (SiO2)

Fossilized Coral (Petoskey-like or Favosites)

Anthozoa (Fossilized Coral)

Puddingstone (Gowganda Tillite/Jasper Conglomerate)

Jasper Conglomerate (SiO2 primary composition)

Gneiss (specifically a Granitic Gneiss)

Gneiss (Composition: Quartz, Feldspar, Mica)

Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Fossiliferous Limestone (Coquina)

Biogenic Limestone (Calcium Carbonate, CaCO3)

Jasper

Silicon Dioxide (SiO2) with impurities

Septarian Nodule (Galt)

Calcareous concretion / Septarian concretion

Chert (varietal: Jasper or Flint)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz